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2 years ago

-0.8b^2+7.4b+(5.6b-0.2b^2)

Mathematics

1 answer:

puteri [66]2 years ago

5 0

Answer:

what? I don't understand lol

You might be interested in

How do I figure out 1b?

taurus [48]

300/5= 60
60x4(children)=240
240 seats will be for children and 60 seats for adults.

4 0

2 years ago

0.73 recurring can be writeen as 11/15

Minchanka [31]

Answer:

yes , see explanation

Step-by-step explanation:

We require 2 equations with the recurring 3 placed after the decimal point.

let x = 0.7333.. ( multiply both sides by 10 and 100 )

10x = 7.333... → (1)

100x = 73.333.... → (2)

Subtract (1) from (2) , eliminating the recurring 3

90x = 66 ( divide both sides by 90 )

x = $\frac{66}{90}$ = $\frac{11}{15}$

5 0

2 years ago

A call center data set shows that in a sample of 30 individuals, 11 had prior call center experience. If we assume that the pro

ira [324]

Answer:

P(X > 5) = 0.1164 to 4 d.p.

The parameters are defined in the explanation.

Step-by-step explanation:

This is a binomial distribution problem

Binomial distribution function is represented by

P(X = x) = ⁿCₓ pˣ qⁿ⁻ˣ

n = total number of sample spaces = number of potential hires = 10

x = Number of successes required = number of potential hires that have prior call centre experience = more than half; that is, x > 5

p = probability of success = probability that any potential hire will have experience = (11/30) = 0.367

q = probability of failure = probability that any potential hire will NOT have experience = 1 - p = 1 - 0.367 = 0.633

P(X > 5) = P(X=6) + P(X=7) + P(X=8) + P(X=9) + P(X=10)

Inserting the parameters and computing the probabilities for each of those values of X,

P(X > 5) = 0.11641775484 = 0.1164 to 4 d.p.

Hope this Helps!!!

4 0

2 years ago

HELP ME PLS ANSWER THIS CORRECTLY AND YOU WILL GET BRAINLIEST AND THE 50+ EXTRA POINTS HELP PLEASE

scoray [572]

Answer

Step-by-step explanation:

I think it is D but I am not 100% sure

7 0

2 years ago

My son is seven times older than my grandson and I am 12 times older than my grandson. If you add all our ages together, the sum

strojnjashka [21]

Given:
I: My age.
S: My son.
G: My grandson.
If you add all our ages together, the sum is 100 years.
SOLVING:

I + S + G = 100 ===> First equation.
S = 7G ===> Second equation.
I = 12G ===> Third equation.

We replace the second equation and the third ecuation in the first equation:
12G + 7G + G = 100
20G = 100
G = $\frac{100}{20}$
G = 5 years old. ===> My grandson.
S = 7(5)
S = 35 years old. ===> My son.
I = 12(5)
I = 60 years old. ===> My age. SOLUTION

TESTING:
$5+35+60=100$
$\boxed{100}=\boxed{100}\quad\checkmark\ The\ value\ is\ correct.$
GOOD LUCK...!!!

8 0

2 years ago